Selection of Efficient VA Mycorrhizal Fungi for Papaya

Reddy, B.M.R.; Bararaj, D. J.; Mallesha, B. C.

doi:10.1080/01448765.1996.9754763

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…The most significant response was exhibited in plants inoculated with G. mosseae. These observations support the earlier findings of Reddy et al (1996) who reported that G. mosseae (ICRISAT) was the most efficient fungus for improving plant biomass of papaya plants. Jaizme-Vega and Azcoñ (1995) reported G. fasiculatum to be the most efficient fungus in improving growth of papaya, pineapple and banana under green house and field conditions.…”

Section: Discussionsupporting

confidence: 83%

“…This is in agreement with the work of Plenchette et al (1981) and Reddy et al (1996) who reported similar growth response in apple and papaya inoculated with arbuscular mycorrhizal fungi grown in unsterile acidic soil with similarly low levels of phosphorus. The study also supports the findings of Onkarraya and Mohandas (1993) that presented improved height and root length of mycorrhizal Citrus under similar set of experimental conditions.…”

Section: Discussionsupporting

confidence: 82%

“…Coorg Honey Dew) seedlings were inoculated in sterilised acidic soil and then transplanted to unsterile soil with varying levels of phosphorus. Reddy et al (1996) screened the efficiency of 13 arbuscular mycorrhizal fungi in papaya plants grown in acidic unsterile soil amended with two percent organic matter, and reported that G. mosseae (ICRSAT) was the most efficient fungus for improving growth and nutrition of papaya.…”

Section: Discussionmentioning

confidence: 99%

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Studies on arbuscular mycorrhisation of papaya

Khade¹,

Rodrigues²

2010

African Crop Science Journal

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Carica papaya L. is known to exhibit a strong growth response to colonisation by arbuscular mycorrhizal fungi; yet it is generally believed that mycorrhizal growth effects are primarily nutritionally mediated and are inversely related to improved soil fertility, especially available soil P, which affects the fungus symbiotic effectiveness. This study was, therefore, undertaken to evaluate the influence of selective arbuscular mycorrhizal fungi on vegetative growth of Carica papaya L. Studies were carried out in India on mycorrhization of Carica papaya var. Surya seedlings. The experiment comprised of un-inoculated seedlings, seedlings inoculated with Glomus intraradices, seedlings inoculated with Glomus mosseae and seedlings inoculated with mixed inoculum [Glomus intraradices + Glomus mosseae]. Inoculation with arbuscular mycorrhizal fungi significantly (P<0.05) increased all the growth parameters viz., plant height, stem girth, leaf area and root length. Mycorrhizal plants exhibited significant increase in fresh and dry weights of shoot and root systems. A higher root: shoot ratio was also observed in mycorrhizal plants than the control plants. Glomus mosseae was the most effective species of arbuscular mycorrhizal fungi, recording the highest root colonisation and exerting profound influence on growth of papaya.Key Words: Arbuscular mycorrhizal fungi, Glomus mosseae, Glomus intraradices RÉSUMÉ Carica papaya L.est caractérisé par une forte croissance en réponse à la colonisation des champignons mycorrhiziens arbusculaires ; de même il est généralement admis que les effets de la croissance des champignons mycorhiziens jouent un rôle principalement nutritionnel et sont inversement liés à l'amélioration de la fertilité du sol, spécialement à la disponibilité en P dans le sol, ce qui affecte l'efficacité symbiotique du champignon. Cette étude a été entreprise pour évaluer l'influence de la sélectivité des champignons mycorhiziens à arbuscules sur la croissance végétative de Carica papaya L. Des études ont été faites en Inde sur la mycorhization des plantes de Carica papaya var.Syria. L'expérience était composée de plantes non inoculés, de plantes inoculés avec Glomus intraradices et des plantes avec l'inoculum mixte (Glomus intraradices + Glomus mosseae). L'inoculation par des champignons mycorhiziens à arbuscules a montré une augmentation significative (P<0.05) de tous les paramètres de croissance à savoir la hauteur de plantes, le diamètre de la tige, la surface foliaire et la longueur des racines. Les plantes avec mycorhizes ont montré une augmentation significative de la surface foliaire et de la longueur des racines. Egalement, le rapport pousse-racines a été plus élevé chez les plantes avec mycorhizes que celles sans mycorhizes. Glomus mosseae a été l'espèce la plus efficace de mycorhizes à arbuscules, ayant enregistré un grand nombre de racines colonisées et une grande influence sur la croissance du papaya.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

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Studies on arbuscular mycorrhisation of papaya

Khade¹,

Rodrigues²

2010

African Crop Science Journal

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“…A study by Michel-Rosales and Valdés 19 and Reddy, et al . 20 revealed colonization of C. aurantifolia roots with several arbuscular mycorrhizae. Mycorrhizae is common in the roots of several citrus species and it contributes to enhancing tolerance of citrus plants to drought, salinity, high temperature and diseases 17 , 18 , 30 – 32 .…”

Section: Discussionmentioning

confidence: 99%

Illumina-MiSeq analysis of fungi in acid lime roots reveals dominance of Fusarium and variation in fungal taxa

Al-Sadi

Kazerooni

2018

Sci Rep

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A study was conducted to analyze fungal diversity in the roots of acid lime (Citrus aurantifolia) collected from Oman, a semi-arid country located in the South Eastern part of the Arabian Peninsula. MiSeq analysis showed the Ascomycota and Sordariomycetes were the most abundant phylum and class in acid lime roots, respectively. Glomeromycota, Basidiomycota and Microsporidia were the other fungal phyla, while Glomeromycetes and some other classes belonging to Ascomycota and Basidiomycota were detected at lower frequencies. The genus Fusarium was the most abundant in all samples, making up 46 to 95% of the total reads. Some fungal genera of Arbuscular mycorrhizae and nematophagous fungi were detected in some of the acid lime roots. Analysis of the level of fungal diversity showed that no significant differences exist among groups of root samples (from different locations) in their Chao richness and Shannon diversity levels (P < 0.05). Principle component analysis of fungal communities significantly separated samples according to their locations. This is the first study to evaluate fungal diversity in acid lime roots using high throughput sequencing analysis. The study reveals the presence of various fungal taxa in the roots, dominated by Fusarium species and including some mycorrhizae and nematophagous fungi.

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“…Gerdemann and Trappe obtained from the University of Western Australia, Nedlands, Australia containing 1,736 infective propagules/g was used for papaya. These AM fungi were chosen as they were effective fungi for the two perennials in earlier studies (Balakrishna Reddy et al 1996;Umakanth and Bagyaraj 1998).The most probable number method with 10-fold dilution was used for estimating the number of infective propagules (Porter 1979). The AM fungi used were maintained at the Department of Microbiology, University of Agricultural Sciences, Bangalore, India in a sterilized sand: soil mixture (1:1 by volume) with Rhodes grass (Chloris gayana L.) as host.…”

Section: Methodsmentioning

confidence: 99%

Inoculation of field-established mulberry and papaya with arbuscular mycorrhizal fungi and a mycorrhiza helper bacterium

2002

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The effects of soil inoculation with arbuscular mycorrhizal (AM) fungi and a mycorrhiza helper bacterium (MHB) were investigated on mulberry and papaya plants already established in the field. Ten-year-old mulberry plants (var. M5) were inoculated with Glomus fasciculatum and 1.5-year-old papaya plants (var. Solo) were inoculated with a mixed culture of G. mosseae and G. caledonium with or without Bacillus coagulans at two levels of P fertilizer. Growth, P uptake, yield and AM colonization levels were monitored. Leaf yield in mulberry and fruit yield in papaya were minimal in uninoculated plants given 50% recommended P. However, crop yields of both mulberry and papaya inoculated with AM fungi alone or together with the bacterium and given 50% recommended P were statistically on a par with that of uninoculated plants given 100% recommended P. As inoculation of B. coagulans increased mycorrhiza levels in AM fungal-inoculated plants, this may be included in the class of MHB. Thus, mulberry and papaya already established in the field may respond to AM inoculation and MHB may increase symbiosis development by efficient AM fungi.

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Selection of Efficient VA Mycorrhizal Fungi for Papaya

Cited by 10 publications

References 8 publications

Studies on arbuscular mycorrhisation of papaya

Studies on arbuscular mycorrhisation of papaya

Illumina-MiSeq analysis of fungi in acid lime roots reveals dominance of Fusarium and variation in fungal taxa

Inoculation of field-established mulberry and papaya with arbuscular mycorrhizal fungi and a mycorrhiza helper bacterium

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